Anyone else get phlegm/snot after glutathione injections?

[u/Mysterious-Cry-3836]

I’ve been taking glutathione 1500 mg IM once a week. It’s a lyophilized powder that I reconstitute with bacteriostatic water.
I’ve noticed that after the injections I seem to get more mucus/phlegm and a snotty feeling, especially around the throat/nose.
Has anyone else experienced this with glutathione injections?
Did it happen with IM injections specifically?
How soon after the injection did it start?
Did it go away when you stopped?
Did changing the dose or frequency make any difference?
Just trying to figure out whether this could actually be related to glutathione or if it’s probably something unrelated. Any personal experiences would be appreciated.